What side effects can this medication cause?   

Alfuzosin may cause side effects. Tell your doctor if any of these symptoms or those listed in the SPECIAL PRECAUTIONS section is severe or do not go away:

• tiredness
• headache
• runny or stuffy nose
• pain
• stomach pain
• heartburn
• constipation
• nausea
• decrease in sexual ability
• sore throat, fever, chills, cough and other signs of infection

Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately:

• rash
• swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs
• hoarseness
• difficulty swallowing or breathing
• chest pain
• fainting

Alfuzosin may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.